Warp stop-motion.



w. H; B AKER.

WARP STOP MOTION. APPLIOATIOH FILED JULY 9, 1910. 1,026,941. Patented May 21, 1912 2 SHEETS-SHEET 1.

W. H. BAKER.

WARP STOP MOTION. APPLIOATION FILED JULY 9, 1010.

Patented May 21, 1912.

B BKBBTB-BKBBT 2.

H. BAKER, F BEIDGEPOR'I, CONNECTICUT.

wear arcs-Morrow.

Specification of Letters Patent.

' Patented May 21, 1912.

Application filed July 9, 1910. Serial No. 571,253.

To all whom it may concern:

Be it known that I, WILLIAM H. Bannn, of Bridgeport, in the count of Fairfield and State of Connecticut, ave invented certain new and useful Improvementsin Warp Stop-Motions, of which the following isa specification, reference being had to the accompanying drawings, forming part thereof.

This invention has reference to improvements in war stop motions for looms, war ing and simi or machines, and particularK to mechanical means by or through whic the machine is stopped upon the breaking of awarp thread or when one of said threads becomes unduly slack, or by or throu h which the occurrence of such fault is indicated One object of this. invention is to so con struct amechanical warp stop motion of the nature described that-the same may be positive in its 0 .ation.

Another 0 ject of-the invention is to facilitate the setting up of a warp with warp etc motions of this nature.

nother object of the invention'is to so construct a warp stop motion of this nature having a knocking 011' .means controlled by a feeler that two or more banks of dro s so may be used with a single feeler so that t e movement of said feeler may be interrupted 'at orb- .the occurrence of a fault in the warp tl ireads: engaged with the drops of v eigir'ba 8 5 othep'object of the invention is to improvethe means for supporting the movable :mechgmxsm the movement of which is adapt- ;.,'ed to, 'be interrupted by the falling of a IOP.

-Other objects of the invention will appear V pirom the '"following description.

The invention consists in the feeler controlled stopping mechanism inoperative relation to the vibrator. a

*5 The invention also consists in the peculiar construction of the slide bar and its support. I

The invention also consists in the eouliar construction of the mountings for t e slide '50 bar support.

. The invenion also consists in such other 'novel features of construction and combinations of parts as shall hereinafter be more fully described and pointed out in the claims. a

Figure 1, represents a cross sectional view VlCeS.

'its retaining note if one of the thread supporting rods being shown asswung outward as. In setting up a warp. Flg. 4, represents an enlarged cross sectional view of portlons 7Q of the improved 'stop motionv taken on line 44 Fig. 5 looking toward the right in said figure. Fig. 5, represents an enlarged sectional view taken on line 5-5 Fig. 4, looking toward the left in said figure. Fig. ,6, represents a similar view taken on line (r-43 Fig.1. Fig. 7, represents a view similar to Fig. 5, showing one of the slide bars as arrested by a drop and the feeler impinging on the'vibrator. Fig. 8, re resents a cross 30 sectionalview on larger sca e, taken on line 4-4 Fig. 5 showing portions of the means for alinmg the drop devices to receive the. slide bar and its support and also showing the construction of said support whereby 35 means may be inserted thereln or thereon for preventin the engagement of the drop devices with t e notches of the slide bar of its su port when slide bar and support are passed through the slots of said drop de- Similar numbers of reference designate, corres onding parts throughout.

As 5 own in the drawings, in its preferred form, 5 and represent bracket arms adapted to be secured in the frame of a loom and to support the blocks 7 and 8 which lcarry the fault detecting mechanism by or through which the loom stopping mechanism" is brought into act-ion to stop the loom. Said blocks 7 and 8 are respectively furnished with the members 10 and 11, of which member 10 is connected with block 7 by the arm 9, and said members 10 and 11 have seats 12 and 13in which the respective-ends of the slide bar support 14-14 are received; accidental displacement of said supports 14-14= being prevented by the keepers 15 and 16 mounted to swing over the seats 12 and 13 and spring pressed toward such po- 110 sition.

The supports 14+14 are furnished with longitudinal gi'ooveslext ending from their upper edgesyas shown in section in Fig, 8, and said upper edges of the support 14-14,

preferably at both sides of said longitudinal groove, are furnished with notches 17-47 which may be of any'suitable depth and dimensions; said supports 14-14 have also the transverse slots 18-18 located near the after described, and extending above theslot-ted edgeof the bar 14 and. furnished at said upper edge with the slots 20-20 which extend approximately to the bottom line of theslots 17-47 At the, end portions of each slide bar 19 are remoi' ably secured the, studs 21-21 which extend through the slots 1818 of its relatedslidebar support 14.

Journaled in hearings in the block 7 is the rock shaftQZlmving the lever 23 furnished with the: rod 24, which is adapted to form a conneotionwith some suitable 'moving part otthe loom, whereby, the vibration of said lever 23 may he etl'ected to rock the shaft 22 to. vibrate. theiyielding connection, secured to said shaft 22 by the co1lare25, and comprising the flexible blades 26, 26. located at the sides of the spacing .block 27.

Mounted to swing on the shaft 22 is the frame 28 having the upwardly extending member 29, furnished. with the finger 30 which is ei'igaged between the groups of blades 26, Q6 and. the depending arm 31 a which extends downward below the supports 14 14 andthon upward between said supports at which point it is furnished with a cross-wise groove to receive theinwai'dly extending .onds of the studs 21, 21 of the slide rods 1!), 15) at this 0nd of the supports 14, 1

so that under normal conditions, the rockjug of the shaft 22 effects the vibration of i from the lower portion of block I the arm 3! and the reciprocation of the slide rods 15), if) hut,,1t the movement of either of said slide. bars 15 arrested, by a resistance sullicient to overcome the flexible blades 26,,26 the shaft 22 continues tooroclt without ofl'ectiug the vibration of the arm 31.

livotally mounted onev stud extending is the lever 36 having the arm 37 furnished with the .t'celex' 38 which, tlwi'oim'o, is adapted to be vibrated in a path at right angles to and intersecting the path in which the lowcrf portions 3 of the arm or vibrator 31 moves or vibrates. The lower oud1ol lever 36 has the sleeve 39 in which one end of thoicoiinootiug rod 40 is secured, the other ond of said rod 40 hoiugsimilni'ly secured iuthc sleeve 41 having the stud 1:2, harming a pivotal connection between said sleeve 4i and the arm 43 of the shaft 45v; which latter is rotatnbly supported by the lnyof the loom and has the short arm 45 furnished with the adjustable screw 46 in the n knock off dagger, so called, so that the mo tion of the lay 1 is transmitted through arm 43 and rod 40 effects the vibration of lever ture of a;

36 and its arm 37 whereby upon the movemally held against the stop 85 of the sword e, and the arm 45 is positioned as shovm in full lines in Fig. 2. When, now the mo e ment of the feeler 38 is prevented the Y tinned movement of the lay l, carrying the bearings of shaft 44 toward the breast hes-in Zi, will effect the swinging of arm to its screw 46 is in line with pin {18 and ecting through said pin, effects the swinging of the protection lever 49 to knock the ship per lever 50 out of its retaining notch where by the shipper lever is free to move to the loom stopping position I Adgustahly supported on extensions or: the respective blocks 7 and 8 are the 51 and 52 having respectively pairs oi collars 53, 541- and 55', 56 in either pair of which the ends of the warp supporting rod may be secured, and the respective for the rod 60 The brackets, 51, 52 have also the stops '61,, fiiiend pivotnliy mounted on said brackets adjaeent to said stops, are

the arms'63 end 64 which have the members 65, (id-adapted to co intercepted. W said stops, and dollars (59, 7G in which collars the ends of the warp sup writing :ocl. J1 are mounted. while, to said olocks 6?, 68 are re movably secured the ali-n'ing p Y2, T9.

In setting up a warp in a. loom provided with thisstop motion the arms and at are swung to the positions shown in Figs. 3 and (5 with the warp tl reads in extending through theioon'i above rod and the aiin- .l;

ing plates 72, 72. A drop device 0: of thin sheet metal and 01' any well known sl'iape suitable for the purpose and. pre ably ing the lower open slot 6 and, the nope?! closed slot 7- .is now vengag edtwith. each hi the threads by passing the lower open end of saiddrop down over one it said warp threads and, at the same time overone of the alining plates Z2 as shown in Fig. 8,

this process being continued until all the warp threads are supplied with drops which are or may be arranged in one or more banks, each bank of drops being; engaged with one of the pistes 72, 72 and the slots f of all of'said drops being in line. The slide; bar supports 14, 14 are now, in SLlCQCSSlOlL taken from their seats and the studs '21 at one end are removed to permit said support l4- and its slide bar 19 to pass through the alincd slots f of a bank 05 drops a and, to-

prevent the catching of the notches 20 of the slide bar against the edges of said slots 7, I provide a thin ribbon or strip 7 3, Fig. 8, which is adapted to be received in the longitndinal groove of the slide bar support 14, at the side of said slide bar 19, owing to said groove being of greater width than the thickness of the slide bar, and said stri 73, extending beyond the notched edge ot the slots 1 of the drops without catching. After such threading of the support 14: and its slide bar through the slots 14, the alining plates are released from their holding bolts and removed from the machine. The strip 73 is pulled out, endwise, and the ends of the support 14: are seated in their seats 12 and 13 in which they are held by the reaction of their spring pressed keepers 15, 16. When all of said slide rod supports 14 have been thus replaced the arms 63, 64 are swung to the position shown in Fig. 4. and the warp thread w and their drops (Z are supported by the rods 57 and 71.

\Vith the drops (Z, (Z, sustained by the warp threads '11:, w in the normal position, the upper closed ends of the slots f, f of said drops (Z, (Z are above the notched edge of the slide bars 19, 1.) and said bars are free to reciprocate under the vibration of the arm 31. It now, one of said warp threads breaks or becomes unduly slack the drop (1 of said-warp threads falls until it meets the upper edge of its associated slide bar 19 or enters one of the notches 20 thereof, in the first case the fallen drop is held from lateral movement by the adjacent drops until the slide bar 19 moves suiliciently to bring one of its notches in registry with said fallen drop when said. drop enters said notch and is then carried along over the edge of the slide bar support until it enters one of the notches 17 one edge whereof engages the drop and prevents the further movement of the drop which, in turn, arrests the movement of the slide bar 19. If the falling drop enters one of the notches of the slide bar 19 said drop is carried along until it engages one of the notches of the slide bar support 14 and so arrests the movement of the slide bar.

The notches 17 and 30 respectively of the supportM and of the slide bar 19 are so proportioned and related that the movement of the slide bar 1.9 is arrested only when the lower end 31 of arm or vibrator 31 is in the path of the :feeler 38 and, hence, said feeler impinges on said portion or member 31 whereby the movement of said tecler and its related parts, in this direction, is so limited that screw 46 is moved into line with pin 48 and, striking said pin, as above described, effects the release of the shipper lever.

While, preferably, I employ the member through which motion is iu'lparted to the slide bar to arrest or limit the vibration of the feeler I do not wish to limit the present invention thereto as I am aware that other means may be employed for this purpose.

The term 't'ecler is herein used to designate broadly any element adapted tovimpinge against another element to limit the movement of a member of a mechanism by or through which a stopping means is brought into 0 eration to ultimately effect the stopping o the loom or other machine.

One of the notched edges of the support 14 may be considered as a holding means for the riding strip 73 as said strip is held in position thereby.

To the best of my knowledge I am the first to operate the protection rod or lever of a loom through a warp sto motion to effect the knocking or moving 0 the shipper lever out of engagement with its retaining notch or device to permit said shipper lever to move to the loom stopping position and I desire to claim this feature broadly.

Having thus described my invention, I claim as now and desire to secure by Letters Patent- 1. A warp stop motion comprisin a notched bar slidably mounted, 0. vi rator pivotally mounted and connected with said bar, a rock shaft having a yielding connection with which said vibrator is engaged, drop detectors for arresting the movement of said bar and its vibrator under abnormal conditions, and a feeler mounted to move in a path intersecting the path of said vibrator.

2. A warp stop motion comprising a notched bar slidably mounted, a vibrator i brator under abnormal tonditions, and a feeler cotiperating with said vibrator and mounted to move in a path intersecting the path of said vibrator.

3. A warp stop motion for looms comprising a notched bar slidably mounted, a pivotally mounted vibrator to reciprocate said bar, operating means for said vibrator including a yielding connection, means for arresting the movement of said notched bar under abnormal conditions, a feeler mounted to move in a path intersecting the path of said vibrator and cooperating with said vibrator and having a lever, means for operating said lever from the lay of the 100m such means including a dagger, the knock oll' lever, an arm pivotally mounted on the breast beam and adapted to act against the last mentioned arm'and said dagger.

4. A. warp stop motion comprising a pair of" notched bars slidably mounted, means for reciprocating the said bars under normal conditions including 2; pivotally mounted a feeier coiS gerat-ing with said movable memmember movable in unison With'said bars, a bee and mounted to mnve in a path interrock shaft, two fiexlble plates upon said rock sectmg the path of semi movable member.

shaft in engagement with the said movable member, drop detectors for arresting the movement of either of saiii bars and said movable member under abnormalbonditions,

*WILLIAM H. BAKER. Witnesses Pl. MiLLER, FRANC S J. G'EEGAN. 

